baber/WOPTO huggingface dataset:
Patent CA-1291315-C (CA)
Title: Electromagnetic pump type automatic molten-metal supply apparatus
Inventor: SAITO HIROZI
IPC: B22D17/32
Filed: 1987-08-12
Granted: 1991-10-29
Abstract: ABSTRACT OF THE DISCLOSURE    When molten metal within a molten metal tank is supplied to an injection sleeve of a casting machine through a molten-metal supply pipe by the operation of an electromagnetic pump, a sensor detects changes in height of the surface of molten metal within the tank as time passes, and a controller corrects the period during which the pump is driven on the basis of molten-metal surface detection signals from the sensor.  The controller divides the difference in height of the surface of molten metal within the tank as between its highest level and its lowest level into a number n of regions, and drives the pump in such a controlled manner that the pump is connected to a three phase AC power source and is intermittently supplied with three-phase power having a constant voltage and a constant frequency so that the pump controls the molten-metal supply amount with its driven period serving as a molten-metal supply period.  A molten-metal supply period for each supply operation is calculated from a predetermined equation using a molten metal supply period corresponding to the highest level of the molten metal surface which is in turn determined from the results of casting tests.  The degree of precision at which molten metal is supplied is further enhanced by an improved structure of the molten-metal supply pipe.
Patent CA-1332134-C (CA)
Inventor: ARMINGTON STEVEN E
IPC: D21F11/00
Filed: 1987-09-09
Granted: 1994-09-27
Abstract: Processes for the production of antistatic or static dissipative papers. The papers produced may be expeditiously used in dunnage converter machines operable to produce an antistatic (static dissipative) resilient pad-like cushioning dunnage product, for packaging and the like. In one of the processes, liquid antistatic material is applied to a still wet porous paper web produced on a Fourdrinier*-type paper making machine, and in predetermined amount for impregnation therein, prior to the completion of the drying of the paper. In another process, a web of dry paper is impregnated with liquid antistatic material, and then the treated web is dried. *Trade-mark
Patent CA-1285674-C (CA)
Title: Spinnable dopes and articles therefrom
Inventor: UY WILLIAM C
IPC: D01F6/96
Filed: 1987-10-08
Granted: 1991-07-02
Abstract: TITLE Spinnable Dopes and Articles Therefrom ABSTRACT OF THE DISCLOSURE Spinnable dopes of poly-p-phenylenebenzobis-thiazole, poly-p-phenylenebenzobisoxazole, or poly-2,5-benzoxazole and thermoplastic or intractable polymers in certain mixed solvents are provided.
Patent CA-1305144-C (CA)
Inventor: KRUEGER MARTIN
IPC: A01N43/90
Filed: 1987-12-18
Granted: 1992-07-14
Abstract: ABSTRACT The invention relates to new 6,7-dihydro-[1,2,4]triazolo-[1,5-a][1,3.5]triazine-2-sulphonamides of general formula I       (I) in which Ar, R6, R7, R8 and X have the meanings given in the description, processes for their preparation and their use as herbicides and plant growth regulants.
Patent CA-1309399-C (CA)
Title: Effluent treatment
Inventor: JACKSON SAMUEL D
IPC: C02F1/72
Filed: 1988-01-22
Granted: 1992-10-27
Abstract: Abstract Effluent treatment A catalyst for decomposing an oxidising agent, such as hypochlorite ions, in an effluent comprises an intimate mixture of at least one finely divided Group IIA oxide and finely divided nickel oxide, and/or hydrates thereof, supported on pieces of a non-porous substantially inert material.  Some of the nickel may be replace by cobalt.  The Group IIA oxide forms 0.5 to 50% by weight of said intimate mixture.  The nickel and Group IIA oxides may be applied by contacting the support with a solution of a suitable salts, eg nitrates.  Where the support is a Group IIA compound, eg magnesia, the Group IIA oxide may be incorporated into the intimate mixture by contacting the support with an acid solution of the nickel salt.  In use the nickel oxide is oxidised to a higher oxidation state than NiO.
Patent CA-1336205-C (CA)
Title: Production of pre-recorded tape cassettes
Inventor: GARDNER JOHN P
IPC: G11B15/087
Filed: 1988-01-29
Granted: 1995-07-04
Abstract: Open spool reels (18) of magnetic tape (7) are recorded with a plurality of different programmes interspersed with recordings in a different form (typically as interruptions to the sync track),   representing data information concerning the programme material and production history of the recording.  The data (6) recorded on the tape (7) is read by a transducer (39) on a cassette loading machine (30) and used to control the operation of the loading machine, identifying the length of tape and the position on the tape where splices between the magnetic tape (7) and  leader tape in cassette shells is to be made.  The data (6) also controls a label printer (46) to produce a printed label typically  in bar code form  carrying  information representing the programme material on the tape loaded into the cassette.  This label  is automatically applied to the cassette shell as part of the cassette loading operation so that each cassette is securely provided with external  easily read  information  identifying the programme content thereby avoiding the necessity for individual playback of a tape to identify its programme content.
Patent CA-1312613-C (CA)
Title: Process for the preparation of monoesters or diesters of 9,10-endoethano-9,10-dihydroanthracene-11, 11-dicarboxylic acid, novel monoesters or diesters prepared by this process anduse thereof for the preparation of symmetrical or asymmetrical methylidenemalonates
Inventor: BRU-MAGNIEZ NICOLE
IPC: C07C69/38
Filed: 1988-03-03
Granted: 1993-01-12
Abstract: ABSTRACT OF THE DISCLOSURE        The invention relates to novel monoesters and diesters of 9,10-endoethano-9,10-dihydroanthracene-11,11-dicarboxylic acid.        These novel monoesters and diestera correspond to the following structural chemical formula (II):         (II)   in which R1 and R2 are identical or different and can represent H, an alkali metal or alkaline earth metal atom, a linear or branched alkyl group having from 1 to 6 carbon atoms, an alicyclic group having from 3 to 6 carbon atoms, an alkenyl group having from 2 to 6 carbon atoms, defined in their cis or trans variety, or an alkynyl group having from 2 to 6 carbon atoms, the said groups optionally being substituted by one or more functional groups such as ether, epoxide, halogeno, cyano, ester, aldehyde, ketone, aryl etc., where R1 and R2 cannot be H or ethyl simultaneously.  These addition products constitute valuable intermediates for the preparation of methylidenemalonates in high yields and with a high purity.
Patent CA-1299378-C (CA)
Title: Quartz analog watch movement with lavet-stepping motor and large energy cell
Inventor: SCHWARTZ HERBERT
IPC: G04C10/00
Filed: 1988-03-11
Granted: 1992-04-28
Abstract: PI-1141-H. Schwartz QUARTZ ANALOG MOVEMENT WITH LAVET STEPPING        MOTOR AND LARGE ENERGY CELL                      ABSTRACT OF THE DISCLOSURE     A movement for a three hand quartz analog timepiece has an energy cell supplying power to a timekeeping circuit which periodically steps the rotor of a Lavet type stepping motor.       The  stepping  motor  rotor  drives  a  "seconds"  wheel  assembly attached  to  the  "seconds"  hand  spindle  through one  or  more intermediate wheel assemblies of gear, pinion, and spindle.  A first intermediate wheel spindle of non-magnetic material  is journaled   such   that   its   axis   extends   through   the circumferential gap carrying magnetic flux  between  the  rotor and  the  stator  of  the  stepping  motor.   Several  alternative means  of  journaling  the  first  intermediate  wheel  assembly within the active flux gap of the stepping  motor are shown and described,  as well as movements having two intermediate wheel assemblies.  The arrangement allows a small diameter "seconds" wheel and a relatively large energy cell, which provides a long running time for the movement.
Patent CA-1289420-C (CA)
Title: Method of producing high aqueous volume multilamellar  vesicles
Inventor: WALLACH DONALD F H
IPC: A61K35/76
Filed: 1988-03-11
Granted: 1991-09-24
Abstract: ABSTRACT          Disclosed is a new method of producing high aqueous volume multilamellar lipid vesicles.  The method uses less expensive materials than those commonly used, is faster than classical methods, and produces vesicles with a much higher encapsulated mass and captured volume than was previously available.
Patent CA-1324310-C (CA)
Inventor: KLODOWSKI HARRY F
IPC: G01N33/00
Filed: 1988-03-25
Granted: 1993-11-16
Abstract: METHOD AND APPARATUS FOR REFRIGERANT     TESTING IN A CLOSED SYSTEM                   ABSTRACT OF THE DISCLOSURE            In a preferred embodiment, refrigerant together with oil, water and any other contaminants is drawn off from a high pressure refrigeration system.  The drawn off refrigerant is reduced in pressure and serially, the oil is removed, the water is removed and the amount of water and acid present is determined.
Patent CA-1319026-C (CA)
Title: Impulse sensor with mechanical preamplification and noise cancellation
Inventor: LEW HYOK S
IPC: G01L5/00
Filed: 1988-03-28
Granted: 1993-06-15
Abstract: IMPULSE SENSOR WITH MECHANICAL PREAMPLIFICATION AND NOISE CANCELLATION Abstract of the Disclosure An impulse sensor comprises a first Piezo electric disc (25) with two oppositely polarized halves disposed symmetrically about a reference plane including the rib (26) of a thin wall of the transducer container vessel and pressed on to the thin wall, and a second Piezo electric disc (29) with the same polarization for both halves disposed symmetrically about the reference plane and pressed onto a rigid wall of the transducer container vessel. The impulses transversely acting on an impulse receiving member extending from the thin wall generate electric signals of high signal-to-noise ratio from the first Piezo electric disc (25) and electric signals of low signal-to-noise ratio from the second Piezo electric disc (29). The electric signals from the two Piezo electric discs are combined to cancel noises and extract refined signals representing the impulses.
Patent CA-1302036-C (CA)
Title: Apparatus for hot pressing mats used in the manufacture of chipboard, fiberboard and similar pressed board
Inventor: WALTER KARL
IPC: B27N3/24
Filed: 1988-07-20
Granted: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE     The apparatus for hot pressing a pressing board mat used in making chipboard panels, fiberboard panels and pressed board panels comprises a continuously operating press with a lower press belt and an upper press belt and a conveyor with at least two endless conveyor belts adjoining each other.  The press has a mouth or entrance in which the conveyor extends with a delivery nose directed in the feed direction up to a delivery region in the entrance.  The delivery nose is movable in the vertical direction, in the transport direction and in a direction opposite to the transport direction and because of that, the delivery region is displaceable in the entrance of the press according to the thickness of the pressed board mat to be pressed.
Patent CA-1309344-C (CA)
Title: Liposome based homogeneous immunoassay for diagnostic tests
Inventor: JOU YI-HER
IPC: G01N33/76
Filed: 1988-07-27
Granted: 1992-10-27
Abstract: "LIPOSOME BASED HOMOGENEOUS  IMMUNOASSAY FOR DIAGNOSTIC TESTS"                          ABSTRACT          The present invention provides for novel homogeneous immunoassay systems involving complement-mediated lysis of marker-encapsulating lipid vesicles (liposomes) for detection of analyte in a fluid sample.  These systems do not require the separation of unbound antigens and/or antibody conjugates yet provide highly sensitive procedures for analyte detection. Liposomes containing a marker, are coupled to antibody fragments in a way which confers the liposomes with immunological specificity yet avoids sensitizing the liposomes to complement mediated lysis in the absence of analyte.  Antibody sensitized liposomes (the first reagent) are sequentially incubated with an analyte-containing sample, and optionally "dummy" liposomes, which do not contain encapsulated marker, a second antibody (the second reagent), and finally with a complement source such as plasma.  Complement is activated by the liposome-antibody-antigen-second antibody complex causing liposome lysis and a concomitant release of marker.  Antibody of the first reagent may be an anti-analyte F(ab')2 antibody fragment, or an anti-analyte Fab' antibody fragment. Antibody of the second reagent may be provided in either soluble form, or in insoluble form e.g., bound onto carboxylated polystyrene particles or coupled to a third antibody in the form of a "double antibody" immune precipitate.  Where the antibody of the second reagent is provided in an insoluble form, the analyte-containing sample is preferably incubated with the second reagent, to form an analyte-second antibody complex, prior to incubation with the first reagent.  Where the second reagent consists of soluble antibodies, the first reagent is incubated with the analyte containing sample prior to incubation with the second reagent.  Also provided are methods for preparing antibody sensitized liposomes in the presence of a polysaccharide capable of forming a reversible gel and methods for preparing derivatized Fab' antibody fragments for coupling to lipid vesicles.
Patent CA-1304709-C (CA)
Inventor: BARRUS GORDON B
IPC: B41J15/16
Filed: 1988-08-04
Granted: 1992-07-07
Abstract: ABSTRACT OF THE DISCLOSURE         In a color printer in which a shuttle assembly con-taining a plurality of impacting print hammers is reciprocated in bidirectional fashion relative to an opposing platen to impact a print paper against the platen through the different color zones of an ink ribbon to print in color, the different color zones of the ribbon are arranged in a repeating pattern along the length thereof enabling the lightest color to be printed first followed by successively darker colors as the ribbon is advanced bidirectionally between the opposite ends thereof.  A pair of barrier zones having a blank ribbon zone therebetween are disposed between each adjacent pair of color zones on the ribbon to prevent ribbon contamination due to bleeding of ink between adjacent color zones when the ribbon is wound on a reel. Ribbon contamination is further prevented by the blank ribbon zones which absorb ink that rubs off onto the ribbon guides.   The various different color zones are identified by one or more strips which extend across the width of the ribbon adjacent each color  one and which identify the color therein in bar code fashion.  The color printer may be operated in a manner which provides multiple passes of each color zone through the print station between the shuttle assembly and the platen to prolong the life of the ribbon and to enable the printer to quickly advance to the next color zone with a minimum amount of search time.  The print paper which is driven bidirectionally by tractor drives above the print station is held in tension by an arrangement below the print station which employs a torque motor having an elasto-meric wheel engaging a side of the paper opposite arrangement of non-ink absorbing rollers.
Patent CA-1331252-C (CA)
Title: Fluoroelastomer compositions containing a tetraalkylammonium halide and vulcanization accelerator
Inventor: TABB DAVID L
IPC: C09J127/16
Filed: 1988-08-11
Granted: 1994-08-02
Abstract: TITLE FLUOROELASTOMER COMPOSITIONS CONTAINING A       TETRAALKYLAMMONIUM HALIDE AND   VULCANIZATION ACCELERATOR                ABSTRACT OF THE DISCLOSURE A fluoroelastomer composition that has enhanced adhesion to metal when cured which comprises:              (a) an elastomeric copolymer of vinyli-dene fluoride and at least one other fluorinated monomer, (b) a vulcanization accelerator that is a quaternary phosphonium compound, (c) a crosslinking agent selected from the group consisting of a bisphenol or a polyhydroxy phenol of the formula:          where R is H or an alkyl group or an aryl group and R' is an alkyl group or an aryl group, and (d) 0.02-0.8 weight percent based on the weight of the elastomeric copolymer of a metal adhesion promoter that is a tetraalkylammonium halide where each alkyl group contains 1-10 carbon atoms and the halide is a chloride, bromide or iodide.  When cured in contact with metal the fluoroelastomer composition forms a strong bond with the metal surface.
Patent CA-1323360-C (CA)
Inventor: KNEALE BRIAN
IPC: B01J37/08
Filed: 1988-09-16
Granted: 1993-10-19
Abstract: Case 6798 ABSTRACT OF THE DISCLOSURE           ALUMINA-BASED CATALYSTS, THEIR PRODUCTION                          AND USE            An alumina-based composition for use as a catalyst is obtained from a composition comprising an alumina having a bulk density of at least 0.6g/ml and a pore volume of less than 0.6ml/g, a sintering agent and a refractory oxide of a rare earth metal by sintering the composition at a temperature of at least 1000°C.
Patent CA-1329762-C (CA)
Title: Potentiation of erythropoiesis
Inventor: YU JOHN C
IPC: A61K38/00
Filed: 1988-11-14
Granted: 1994-05-24
Abstract: POTENTIATION OF ERYTHROPOIESIS               Abstract of the Disclosure A method for modulating the rate of erythropoiesis in human hematopoietic progenitor cells. FRP is found to be an efficacious potentiator of, and inhibin a suppressor of, erythropoietin-induced differentiation.  FRP and inhibin are shown to be functional antagonists of each other, and thus represent an effective means for modulating erythropoiesis in a number of disease states which are directly caused by or associated with an abnormal rate of erythropoiesis.
Patent CA-1332071-C (CA)
Inventor: BELANGER THOMAS D JR
IPC: H05K9/00
Filed: 1988-12-16
Granted: 1994-09-20
Abstract: A DEVICE FOR DISCHARGING ELECTROSTATIC POTENTIALS                     ABSTRACT A device for conducting electrostatic potentials to a protection ground is disclosed.  The device includes an electrically conductive center section mounted on a substrate mounting device, with the center section electrically connected to the protection ground.  First and second electrically conductive bands extend from opposite sides of the the center section. During the installation of a circuit substrate to the substrate mounting device an associated band is arranged to contact a metalized edge of the circuit substrate providing an electrical path for discharging electrostatic potentials from the circuit substrate to the protection ground.
Patent CA-1312124-C (CA)
Title: Method and apparatus for tig welding
Inventor: STAVA ELLIOTT K
IPC: B23K9/10
Filed: 1988-12-19
Granted: 1992-12-29
Abstract: METHOD AND APPARATUS FOR TIG WELDING        Abstract of Disclosure A method and apparatus for TIG welding by passing an alternating current between a non-consumable electrode and a workpiece to form an arc, which apparatus comprises a single reactor, passing a direct current from a direct current pow-er supply through a first portion of the reactor and in a negative direction from the workpiece to the electrode for creating a heating cycle, switchably disconnecting the di-rect current power supply from the circuit and immediately connecting the second portion of the reactor in a positive direction across the electrode and workpiece for creating a short cleaning cycle for cleaning the workpiece preparatory to the next heating cycle.  These cycles are continued to create a TIG welding process.
Patent CA-1340709-C (CA)
Inventor: BAUMGARTNER WERNER A
IPC: G01N33/94
Filed: 1988-12-23
Granted: 1999-08-17
Abstract: A method for the direct analysis of analyte in keratinized structures, e.g., hair, fingernails and toenails, which comprises preparing a mixture containing a low redox potential compound such as dithiothreitol or dithioerythritol, an enzyme suitable for the degradation of the keratin structure and a sample of the keratin structure; permitting the enzyme to at least substantially degrade the sample of keratin structure, and subjecting the mixture to analysis to determine the identity and amount of analyte in the keratin substance sample. To accelerate the method, cupric sulfate or sodium arsenite may be added to the mixture after degradation of the keratin sample.      The enzyme may be a peptidase, endopeptidase or proteinase, with papain, chymopapain, and proteinase K being preferred for use in the invention.
Patent CA-1305431-C (CA)
Title: Audio noise gate
Inventor: SCHOLZ DONALD T
IPC: H04B15/00
Filed: 1988-12-29
Granted: 1992-07-21
Abstract: Abstract of the Disclosure An audio noise gate having a main audio circuit having a filter with a control terminal for determining frequency response and having at least two different roll-off frequencies including one that rolls-off high end content audio signals and one that passes high end content audio signals.  The main circuit is controlled from two secondary circuits one including a high pass filter for determining high frequency content of the audio signal and the other comprising a signal detection circuit including a peak detector for determining absence or presence of a note.  The signal detection circuit operates in combination with the high pass filter circuit to provide for automatic adjustment of the noise gate to control the release time, quickly for short notes and slowly for held notes.  The output of the high pass filter circuit also includes a peak detector and a gain stage for controlling the frequency response of the main circuit.
Patent CA-1319465-C (CA)
Title: Ventilated toilet
Inventor: MARTENS HENRY H
IPC: E03D9/05
Filed: 1989-02-09
Granted: 1993-06-29
Abstract: ABSTRACT    This invention relates to a ventilated toilet system for removing obnoxious odors from the toilet bowl and includes integral vent channels formed along the base and the back inside of the water tank, and a vent adapter mounted inside the passage that directs the flow of ventilating air along the vent channels to an exhaust pipe and discharges it by a remote in-line exhaust fan to the outside atmosphere.  The adapter is attached to the base of the overflow flush valve pipe or, conversely, designed to be an integral part of the overflow flush value pipe, itself, and is positioned to connect the base vent channel of -the water tank to the toilet water inlet chamber of the bowl for passage of ventilating air, and to connect the overflow flush valve pipe to the water inlet chamber for passage of flush water.
Patent CA-1335203-C (CA)
Title: Process for the preparation of isoquinoline derivatives
Inventor: BOUISSET MICHEL
IPC: C07F13/00
Filed: 1989-02-15
Granted: 1995-04-11
Abstract: Disclosed is a process for the preparation of isoquinoline derivatives useful as anti-tumoral and anti-leukemic agents, which are of the general formula:                            (I) in which: - R1 and R'1 which are identical or different, each is selected from hydrogen and C1-4 alkyl; - X is selected from nitrogen and C-OR2 in which R2 is selected from C1-4 alkyl and benzyl, - Am represents an amino group substituted or not by a group of the formula:       in which R3 and R4, identical or different, each is selected from hydrogen and an alkyl radical having from 1 to 6 carbon atoms, R5 is selected from hydrogen and an alky radical having from 1 to 6 carbon atoms and n represents a value of from 1 to 10. The process comprises four steps, wherein use is made of organo-lithium compounds or related compounds as synthetic intermediates.